Sandpapering and polishing machine



(No Model.)

T. B. MARSHALL.

SANDAIERINGr AND POLISHING MACHINE.

Patented Oct. 12, 1886. Zzgl Jg INVENTOR:

WITNESSES:

ATTORNEYS.

Nv PETERS, Phom-Limugmpher, wmmgmn. D. C.

UNITED STATES PATENTA FFICE.

THOMAS BRAINERD MARSHALL, OF SIDNEY, OHIO.

SANDPAPERING AND POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent 1\To.350,689I dated October l2, 1886.

Application filed June 26, 1886.

To all whom it may concern:

Be it known that I, THOMAS BRAINERD MARSHALL, of Sidney, in the county of Shelby and State of Ohio, have invented a new and Improved Sandpapering and Polishing Machine, of which the following` is a full, clear, and exact description.

My invention relates to the construction of a device whereby a fiat, oval, and concave surface may be sandpapered and polished with the grain of the wood; and to the end named the invention consists of a wheel upon the peripheral face of which there are arranged springs that are covered with felting and saeking, above which there is placed a band of sand-paper or a sand-band, the sacking and sand-paper or sand-band being secured in any manner desired to the said face of the wheel.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the gures.

Figure 1 is a side view of a portion of a wheel constructed in accordance with the terms of myinvention, one-half of the portion illustrated being shown in section. Fig. 2 is a crossseetional view of a portion of the device upon an enlarged scale, and Fig. 3 is a fullsized view of one of the springs employed to form the yielding bed upon which the felt is arranged.

In constructing such a device as the one illustrated in the drawings above referred to, I provide a wheel of suitable sizesay twentyfour inches in diameter-and to the peripheral face of this wheel (a portion of which is shown at 10) I secure springs 11, of the form best shown in Fig. 3, these springs being secured to the peripheral surface of the wheel by screws 12 in regular rows, or they may be staggered, the only requirement being that the springs shall be arranged as close together as is possible. A stratum or band of felt, 13, is

(No model.)

placed about the springs and held in position by a strip of sucking or canvas, 14, the edges of said strip being preferably corded, as best shown at 15. This strip of saeking is held t place and prevented from creeping by hooks 17, that are secured to the side of the wheel by small screws 0r nails; or in certain cases the saeking might be tacked directly to the sides of the wheel.

The sand paper or band is shown at 20, and is applied so as to rest smoolhly upon the peripheral surface ofthe wheel after such wheel has been treated as described, the edges of the paper or strip being bent over and crimped and secured to the sucking 14 by safety-pins 2, or by any other convenient and suitable attaching device.

The wheel is arranged to be mounted upon a revolving shaft or spindle, and the wood to be smoothed and polished may be brought to bear upon the surface of the rapidly-revolving wheel 1.0.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a wheel, ofsprings secured to the peripheral face thereof, a band of felt resting upon the springs, and a strip of ea1ivas\1csti1ig upon the felt, and means for securiig the canvas to the wheel, substantiallyl as herein shown and described.

2. rlhe combination, with a wheel, ofsprings secured to the peripheral face thereof, felting i3, arranged upon the springs, sacking 14,11eld to the wheel by hooks 17, and an outer layer of sand-paper or cloth held to the sacking by proper connecting devices, substantially as described.

THOMAS BRAI NERI) MARSHALL.

Witnesses:

S. J. HATFIELD, FERDINAND LIERMAN. 

